Hybrid Book - Chapter 5
13 Questions
| Total Attempts: 88
Questions and Answers
- 1.All electric traction systems for hybrid, fuel-cell, and electric vehicles include a(n) ___.
- A.
HVAC compressor
- B.
Electric steering system
- C.
Power inverter
- D.
By-wire braking system
- 2.All induction machines include a ___.
- A.
Differential and rotor
- B.
Rotor and stator
- C.
Transmission and stator
- D.
Rotor and brushes
- 3.The rotor of an induction machine is constructed from stacks of thin iron pieces called ___.
- A.
Laminations
- B.
Core bars
- C.
Splined bars
- D.
Washer rings
- 4.The rotor bars in induction machines are typically constructed of ___.
- A.
Copper and steel
- B.
Copper and brass
- C.
Aluminum and steel
- D.
Aluminum and copper
- 5.An electric machine stator can be constructed in ___ configurations.
- A.
Wye and delta
- B.
Wye and dual
- C.
Delta and double-layer
- D.
Delta and cross-wound
- 6.The operation of an induction machine is similar to the operation of a ___.
- A.
Relay
- B.
Transformer
- C.
Transistor
- D.
Power inverter
- 7.A 3-phase induction machine with 4 poles per phase has ___ total stator poles.
- A.
2
- B.
4
- C.
12
- D.
24
- 8.An induction machine operates with a(n) ___ stator that triggers a timing control strategy.
- A.
Synchronous
- B.
Six-step
- C.
Asynchronous
- D.
Axial
- 9.___ is the electrical principle that forms the basis for induction machine stator and rotor operation.
- A.
Mutual induction
- B.
Self-induction
- C.
Maxwell angling
- D.
Oersted vectoring
- 10.The torque of an induction machine is controlled and determined primarily by waveform ___.
- A.
Amplitube
- B.
Frequency
- C.
Shape
- D.
Domain
- 11.As slip increases in an induction machine, ___ also increases.
- A.
Speed (rpm)
- B.
Regenerative braking efficiency
- C.
Refractive magnitude
- D.
Torque
- 12.To place an induction machine in a regenerative braking mode, the controller executes a ___-slip torque command.
- A.
Positive
- B.
Negative
- C.
Null
- D.
Reverse
- 13.When an induction machine is functioning in regenerative braking mode and generating electrical power, the rotor speed ___ the stator frequency speed.
- A.
Is faster than
- B.
Is slower than
- C.
Is the same as
- D.
Alternates faster or slower than
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